Allegiant Air Flight 536 had to return and make an emergency landing in Las Vegas, Nevada, on January 22.
The flight was heading from McCarran International Airport to Great Falls, Montana, but was forced to return after a smoke alarm went off.
The plane landed uneventfully at around 8:50 a.m. None of the 160 passengers aboard was harmed.
The passengers were shifted to another aircraft which took them to their destination.

United Airlines flight UA-1825 had to divert and make an emergency landing in Madison, Wisconsin, on July 1st.
IndiGo flight 4E-651 had to return and make an emergency landing in Lucknow, India, on January 21st.
American Airlines flight AA-2587 had to return and make an emergency landing in Chicago, Illinois, on May 8th.